rm obsolete for support from the compiler

src/libsyntax/print/pprust.rs

@@ -1087,7 +1087,7 @@ pub fn print_call_post(s: @ps,
         nbsp(s);
         match blk.get().node {
           // need to handle closures specifically
-          ast::expr_do_body(e) | ast::expr_loop_body(e) => {
+          ast::expr_do_body(e) => {
             end(s); // we close our head box; closure
                     // will create it's own.
             print_expr(s, e);
@@ -1338,9 +1338,6 @@ pub fn print_expr(s: @ps, expr: &ast::expr) {
         // empty box to satisfy the close.
         ibox(s, 0);
       }
-      ast::expr_loop_body(body) => {
-        print_expr(s, body);
-      }
       ast::expr_do_body(body) => {
         print_expr(s, body);
       }